A modem is a device that is used for what?

Answer 1

A modem is a device that modulates signals to encode digital information and demodulates signals to decode the transmitted information. It the "thing" that you needed to connect to the internet.

Answer 2

It is the device/internal card that allows you to connect to the internet through a provider. The older modems used to be mostly installed inside the computers, and were connected through an RJ11 phone line, at really slow speeds by today's standards... 14.4Kbps, 28.8Kbps, 36Kbps and 56Kbps. These were used for connectivity called dialup through your Internet Service Provider (ISP). Nowadays, these modems are much less used, and have been replaced with DSL modems, and Cable modems, which have speeds upward 128Kbps up to 10Mbps for a regular connection, and have and have an RJ45 connection. (visually looks like a phone cable, but a bit thicker)

Answer 3

External vs. Internal Modems

External Modem: This is a modem separated from the system unit in the computer case. It is connected to the serial port of the computer by means of a cable. It is connected to the telephone wall jack by another cable.

Internal Modem: An internal modem is a circuit board (a modem card) that can be added to the system unit of the computer. It takes one of the expansion slots.

Standard vs. Intelligent Modems

Standard Modems: Most modems used today are called standard modems. These modems are usually operated by commands entered from a microcomputer keyboard. Users control the functions (dialing, etc.) of a modem through the keyboard. Modems may use different command languages to control their functions, but most modems (called "Hayes compatible") use a popular language developed by a company "Hayes Microcomputer Products, Inc." The command ATDSX4, for example, indicates that pay attention (AT), dial stored telephone number (DS), and then display the progress of the call (X4).

Intelligent Modems: Intelligent modems are also called advanced modems. These modems can accept new instructions and then respond to the commands while transmitting data and information. These can be done by microprocessor chips and internal read only memory (ROM) contained in the modem. Of course, these modems are more expensive.

Short-Haul and Wireless Modems

Short-Haul Modems: Short- haul modems are devices that transmit signals down the cable through any COM1 port. They sometimes are called modem eliminators, because they do not require an external power source. They are also called line drivers that can send data for a distance of more than one mile. This type of modem can be used within or across several buildings in a company or a university campus.

Wireless Modems: Wireless modems transmit the data signals through the air instead of by using a cable. They sometimes are called a radiofrequency modem. This type of modem is designed to work with cellular technology, and wireless local area networks. Wireless modems are not yet perfected, but the technology is rapidly improving

Answer 4

modulator and demodulator. Types dial-up, ISDN, DSL, Cable, radio, Satellite, PLC

Answer 5

A modem is a device that establishes a network connection to internet devices. All modems are connected to a satellite that lets WiFi possible for in home use.

Answer 6

output